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annotate string.rhope @ 72:f7bcf3db1342

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Add =@String, fix bool bug
author Mike Pavone <pavone@retrodev.com>
date Fri, 18 Jun 2010 17:00:50 -0400
parents c40c3d399133
children a748300a4143
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
52
079200bc3e75 String literals almost working. Print moved out of C runtime.
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2 UTF8 Expect[num,arr,index,count,consumed:out]
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3 {
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4 byte <- [arr]Index[index]
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5 {
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6 If[[128u8]>[byte]]
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7 {
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8 //Error: ASCII byte when we were expecting part of a mutlibyte sequence
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9 //treat each byte as a separate character
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10 ncount <- [1i32]+[[count]+[consumed]]
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11 }{
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12 If[[192u8]>[byte]]
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13 {
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14 If[[num]=[1]]
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15 {
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16 //Sequence is complete count as single character
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17 ncount <- [1i32]+[count]
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18 }{
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19 out <- UTF8 Expect[[num]-[1], arr, [index]+[1], count, [1i32]+[consumed]]
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20 }
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21 }{
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22 //Error: too high to be a continuation byte
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23 ncount <- [1i32]+[[count]+[consumed]]
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24 }
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25 }
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26 }{
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27 //Error: string ended in the middle of a multi-byte sequence
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28 out <- [count]+[consumed]
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29 }
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30 Val[ncount]
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31 {
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32 [arr]Next[index]
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33 {
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34 out <- Count UTF8[arr, ~, ncount]
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35 }{
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36 out <- Val[ncount]
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37 }
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38 }
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39 }
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40
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41 Count UTF8[arr,index,count:out]
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42 {
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43 byte <- [arr]Index[index]
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44 If[[128u8]>[byte]]
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45 { ncount <- [1i32]+[count] }
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46 {
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47 If[[192u8]>[byte]]
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48 {
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49 //Error: Encoding for 2nd,3rd or 4th byte of sequence
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50 //treat as a single character
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51 ncount <- [1i32]+[count]
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52 }{
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53 If[[224u8]>[byte]]
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54 {
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55 out <- UTF8 Expect[1, arr, [index]+[1], count, 1]
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56 }{
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57 If[[240u8]>[byte]]
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58 {
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59 out <- UTF8 Expect[2, arr, [index]+[1], count, 1]
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60 }{
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61 If[[245u8]>[byte]]
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62 {
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63 out <- UTF8 Expect[3, arr, [index]+[1], count, 1]
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64 }{
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65 //Error: Out of range of Unicode standard
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66 //treat as a single character
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67 ncount <- [1i32]+[count]
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68 }
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69 }
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70 }
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71 }
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72 }
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73 [arr]Next[index]
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74 {
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75 out <- Count UTF8[arr, ~, ncount]
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76 }{
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77 out <- Val[ncount]
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78 }
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79 }
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80
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81 Blueprint String
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82 {
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83 Buffer
51
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84 Length(Int32,Naked)
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85 }
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86
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87 String[in(Array):out(String)]
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88 {
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89 out <- [[Build[String()]]Buffer <<[in]]Length <<[Count UTF8[in, 0, 0]]
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90 }
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91
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92 Print@String[string:out]
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93 {
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94 //TODO: Sanitize string (remove terminal escapes and replace invalid UTF)
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95 write[1i32, [string]Buffer >>, Int64[[[string]Buffer >>]Length >>]]
69
d0ce696786cc Clean up debug print statements a bit. Fix bug that prevented workers that took no inputs from working. Remove workaround in Array for said bug.
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96 { out <- write[1i32, [Array[]]Append[10u8], 1i64] }
55
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97 }
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98
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99 Get Char[:out]
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100 {
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101 read[0, [Array[]]Set[0, 0u8], 1i64]
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102 {}
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103 { out <- String[~] }
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104 }
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105
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106 _String to Int32[current,index,array:out]
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107 {
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108 char <- [array]Index[index]
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109 {
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110 If[[char]<[48u8]]
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111 {
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112 out <- Val[current]
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113 }{
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114 If[[char]>[57u8]]
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115 {
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116 out <- Val[current]
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117 }{
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118 out <- _String to Int32[[[current]*[10i32]]+[Int32[[char]-[48u8]]], [index]+[1], array]
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119 }
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120 }
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121
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122 }{
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123 out <- Val[current]
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124 }
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125 }
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126
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127 Int32@String[string:out]
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128 {
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129 buf <- [string]Buffer >>
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130 [buf]Index[0]
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131 {
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132 If[[~]=[45u8]]
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133 {
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134 out <- [0i32]-[_String to Int32[0i32, 1, buf]]
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135 }{
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136 out <- _String to Int32[0i32, 0, buf]
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137 }
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138 }{
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139 out <- 0i32
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140 }
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141
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142 }
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143
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144 Flatten@String[string:out]
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145 {
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146 out <- string
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147 }
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148
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149 Slice@String[string,slicepoint:left,right]
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150 {
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151 //TODO: Handle invalid slicepoints
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152 left <- String Slice[string, 0i32, slicepoint]
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153 right <- String Slice[string, slicepoint, [[string]Length >>]-[slicepoint]]
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154 }
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155
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156 Byte@String[string,index:out,invalid]
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157 {
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158 out,invalid <- [[string]Buffer >>]Index[index]
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159 }
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160
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161 Length@String[string:out]
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162 {
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163 out <- [string]Length >>
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164 }
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165
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166 _=String[left,right,index:out]
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167 {
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168 [left]Byte[index]
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169 {
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170 ,out <- If[[~]=[[right]Byte[index]]]
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171 {
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172 out <- _=String[left,right,[index]+[1]]
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173 }
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174 }{
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175 out <- Yes
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176 }
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177 }
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178
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179 =@String[left,right:out]
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180 {
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181 ,out <- If[[[left]Length] = [[right]Length]]
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182 {
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183 out <- _=String[left,right,0]
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184 }
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185 }
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186
55
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187 Blueprint String Slice
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188 {
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189 Source
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190 Offset(Int32,Naked)
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191 Length(Int32,Naked)
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192 }
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193
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194 String Slice[source,offset,length:out(String Slice)]
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195 {
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196 out <- [[[Build[String Slice()]]Source <<[source]]Offset <<[offset]]Length <<[length]
51
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197 }
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198
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199